Question

这是对象。 TypeModel对象和StatusModel对象有一个属性typeID，必须是一个数字（例如1）。

export class TypeModel{
        typeID: number;
        typeDescription: string;
    }


    export class StatusModel{
        typeId: number;
        statusId: number;
        typeStatusDescr: string;
    }

    export class TypeStatusesModel{
        type: TypeModel;
        status: StatusModel;
    }


let typeStatuses: TypeStatusesModel[] = [];
let typeStatusFirst: TypeStatusesModel= new TypeStatusesModel();
typeStatusFirst = {
  type: {
   typeID:1,
   typeDescription: "Description Type 1"
  },
  status: {
   typeId: 1,
   statusId: 1,
   typeStatusDescr: "Description Status 1"
  }
}
typeStatuses.push(typeStatusFirst);

let typeStatusSecond: TypeStatusesModel= new TypeStatusesModel();
typeStatusSecond= {
  type: {
   typeID:2,
   typeDescription: "Description Type 2"
  },
  status: {
   typeId: 1;
   statusId: 2;
   typeStatusDescr: "Description Status 2";
  }
}
typeStatuses.push(typeStatusSecond);

问题是当我尝试将typeStatuses数组中第二个对象的属性typeID更改为数字2时，我在第一个对象中更改了相同的属性（typeID）。我尝试创建一个临时对象并替换掉＃34;破坏的对象＆＃34;但没什么。（let tempObject = Object.create(typeStatuses[1])）

Answer 1

你有一些错误的分号应该只是昏迷。我也会改变那些仅用于接口的条款，因为它们只是在没有任何行为的情况下声明属性。

export class TypeModel{
        typeID: number;
        typeDescription: string;
    }


    export class StatusModel{
        typeId: number;
        statusId: number;
        typeStatusDescr: string;
    }

    export class TypeStatusesModel{
        type: TypeModel;
        status: StatusModel;
    }


let typeStatuses: TypeStatusesModel[] = [];
let typeStatusFirst: TypeStatusesModel= new TypeStatusesModel();
typeStatusFirst = {
  type: {
   typeID:1,
   typeDescription: "Description Type 1"
  },
  status: {
   typeId: 1,
   statusId: 1,
   typeStatusDescr: "Description Status 1"
  }
}
typeStatuses.push(typeStatusFirst);

let typeStatusSecond: TypeStatusesModel= new TypeStatusesModel();
typeStatusSecond= {
  type: {
   typeID:2,
   typeDescription: "Description Type 2"
  },
  status: {
   typeId: 1,
   statusId: 2,
   typeStatusDescr: "Description Status 2",
  }
}
typeStatuses.push(typeStatusSecond);
typeStatuses[0].type.typeID=234;
console.log(JSON.stringify(typeStatuses));

它适用于控制台日志

[{＆＃34; type＆＃34;：{＆＃34; typeID＆＃34;：234，＆＃34; typeDescription＆＃34;：＆＃34;描述类型 1＆＃34;}，＆＃34; status＆＃34;：{＆＃34; typeId＆＃34;：1，＆＃34; statusId＆＃34;：1，＆＃34; typeStatusDescr＆＃34;：＆＃ 34;描述状态1＆＃34;}}，{＆＃34;类型＆＃34;：{＆＃34; typeID＆＃34;：2，＆＃34; typeDescription＆＃34;：＆＃34;描述类型 2＆＃34;}，＆＃34; status＆＃34;：{＆＃34; typeId＆＃34;：1，＆＃34; statusId＆＃34;：2，＆＃34; typeS tatusDescr＆＃34;：＆＃ 34;描述状态2＆＃34;}}]

所以代码应该是这样的。我也删除了导出，因为我无法看到你在外部使用接口。

 interface TypeModel{
        typeID: number;
        typeDescription: string;
    }


    interface StatusModel{
        typeId: number;
        statusId: number;
        typeStatusDescr: string;
    }

    interface TypeStatusesModel{
        type: TypeModel;
        status: StatusModel;
    }


let typeStatuses: TypeStatusesModel[] = [];
let typeStatusFirst: TypeStatusesModel;
typeStatusFirst = {
  type: {
   typeID:1,
   typeDescription: "Description Type 1"
  },
  status: {
   typeId: 1,
   statusId: 1,
   typeStatusDescr: "Description Status 1"
  }
}
typeStatuses.push(typeStatusFirst);

let typeStatusSecond: TypeStatusesModel;
typeStatusSecond= {
  type: {
   typeID:2,
   typeDescription: "Description Type 2"
  },
  status: {
   typeId: 1,
   statusId: 2,
   typeStatusDescr: "Description Status 2",
  }
}
typeStatuses.push(typeStatusSecond);
typeStatuses[0].type.typeID=234;
console.log(JSON.stringify(typeStatuses));

更改对象数组中的一个对象属性会更改所有对象属性（TypeScript）

1 个答案: